Data definition commands alphabetically

Command Description
#az_error Error of azimuth data
#bearing_orientation_error Define bearing orientation error code
#classification Define a type of classification
#classify Define classification for a data type
#data Specify contents of data block
#date Define the date of observations
#deg_angles Angles will be decimal degrees
#distance_scale_error Define distance scale error code
#dms_angles Angles will be degrees, minutes, seconds
#ds_error Error of distance data
#eh_error Error of ellipsoidal height data.
#gps_enu_error Error of GPS baselines
#gps_error_type Format of GPS errors
#gx_enu_error Error of point coordinate observations
#ha_error Error of horizontal angle data
#hp_angles Subsequent angles will be HP format
#ln_error Error of longitude observations
#lt_error Error of latitude observations
#lv_error Error of levelling data
#note Attach a text note to an observation
#oh_error Error of orthometric height data.
#projection Projection used for projection bearing data
#reference_frame Define GPS reference frame code
#refraction_coefficient Define refraction coefficient code
#time Define the time of observations
#zd_error Error of zenith distance data